Determining the effectiveness of impulse noise attenuation with hearing protection devices (HPDs) is an important part of their selection. Measuring impulse noise parameters under an HPD would involve exposing subjects to impulses with a high peak sound pressure level. This paper presents a computational method of determining impulse noise parameters under the cups of earmuffs. Calculations are...

This work was supported by an Australian Research Council (ARC) Large Grant. Abstract—Impulse noise is a significant problem in some OFDM applications including digital television broadcasting. In this paper we study the optimum threshold values for a novel decision directed impulse noise mitigation algorithm. In this algorithm the noise component in each received input sample is estimated base...

The paper describes the problems that may occur when hearing protectors, usually designed for industrial noise environments, are used for high-level impulse (weapon) noise. The military impulse noise environment is described, as are the different types of passive and active hearing protectors and the measurement procedures. The different mechanisms that may alter the effectiveness of the hearin...

Noise hides the important details of images. An efficient noise removal method is an important issue in image processing. Several filters have already been developed in fact special filter is designed to remove only one particular type of noise like Traditional median filter successfully remove the low density impulse noise but fail to remove the high density impulse noise. This paper consists ...

During repetitive contractions, muscular work has been shown to exhibit complex relationships with muscle strain length, cycle frequency, and muscle shortening velocity. Those complex relationships make it difficult to predict muscular performance for any specific set of movement parameters. We hypothesized that the relationship of impulse with cyclic velocity (the product of shortening velocit...

A double apical impulse has been described as a physical sign in hypertrophic obstructive cardiomyopathy (Mounsey, 1959; Braunwald et al., 1960; Boiteau and Allenstein, 1961; Pare et al., 1961; Benchimol, Legler, and Dimond, 1963; Cohen et al., 1964; Gillam, Deliyannis, and Mounsey, 1964; Tafur, Cohen, and Levine, 1964). In this study we have used the impulse cardiogram, which is an optical rec...

This paper reviews the literature on unplanned purchasing and impulse purchasing in particular. Various definitions and explanations of the phenomena are examined. Because impulse purchasing may often be deemed socially undesirable, it is argued that a qualitative research approach is particularly appropriate in order to gain maximum insight. A study employing enabling techniques (including sel...

For the first time, we report the link between, on the one hand, return path ingress and impulse noises measurements and, on the other hand, their relative impact on a 16-QAM transmission. We show that both ingress and impulse noise measurements must be realised in parallel in order to characterise return path noise performance. Diagrams (spectrograms) which exploit both ingress and impulse noi...

Emerging data on the neural mechanisms of impulse control highlight brain regions involved in emotion and decision making, including the ventromedial prefrontal cortex (vmPFC), anterior cingulate cortex (ACC) and amygdala. Variation in the development of these regions may influence one's propensity for impulsivity and, by extension, one's vulnerability to disorders involving low impulse control...

Within individuals, critical power appears sensitive to manipulations in O2 delivery. We asked whether interindividual differences in forearm O2 delivery might account for a majority of the interindividual differences in forearm critical force impulse (critical impulse), the force analog of critical power. Ten healthy men (24.6 ± 7.10 years) completed a maximal effort rhythmic handgrip exercise...